Non ethyne metal cutting method

A technology of metal cutting and metal cutting wire, applied in the direction of metal processing equipment, welding equipment, gas flame welding equipment, etc., can solve the problems of acetylene explosion hazard, endangering life safety, etc., to reduce pollution, avoid waste, save money and nature resource effect

Inactive Publication Date: 2008-06-04
胡保银
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature of the oxyacetylene flame can reach 3150 degrees Celsius. Acetylene may explode in many cases and endanger people's lives.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] When starting to cut, use an electric welding rod to heat the starting point of the metal cutting line to the ignition point instantly, quickly turn on the pure oxygen switch of the welding torch, adjust the air pressure to the best, and cut normally until the metal is cut.

Embodiment 2

[0011] When starting to cut, use a small amount of oxyacetylene flame to instantly heat the starting point of the metal cutting line to the ignition point, turn on the pure oxygen switch of the torch, adjust the air pressure, then turn off the oxyacetylene flame switch, and only use pure oxygen to cut normally until the metal is cut.

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PUM

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Abstract

The invention discloses a no-ethine metal cutting method. The invention is characterized in that the initial point of the metal cutting line is instantly heated to ignition point, a pure-oxygen switch of a welding gun is rapidly turned on, air pressure is adjusted to be optimum and the cutting is normally carried out till the metal is sliced off. The invention can instantly heat the initial point of the metal cutting line to the ignition point by using a solder rod or a plurality of oxyacetylene flame. The invention replaces the oxyacetylene flame with the solder rod, instantly heats the metal to the ignition point and cut with pure oxygen. The metal is preheated by the high temperature generated when the metal combusts in cutting process. The high-pressure pure oxygen leads the metal to continuously burn, generated liquid oxide is continuously blown away by high pressure oxygen and the workpiece is then sliced off. Less ethine is adopted for oxyacetylene flame. The invention has the advantages of simpleness, feasibility, safety and reliability, using a plurality of ethine or no ethines, thus reducing environmental pollution.

Description

Technical field [0001] The invention belongs to a metal cutting method, in particular to a gas heating cutting method. Background technique [0002] At present, the oxy-acetylene gas cutting method is widely used in industrial production. The textbook requires that when cutting, the metal must be preheated to the ignition temperature with an oxyacetylene flame, and then the workpiece should be cut with pure oxygen. The metal must be continuously preheated with an oxy-acetylene flame during cutting. Acetylene is obtained by adding water to calcium carbide, and calcium carbide is sintered from quicklime and coke at a high temperature of 1750 degrees Celsius, which consumes a lot of energy. Industrial acetylene contains hydrogen sulfide, phosphine, ammonia and other toxic gases, which will pollute the living environment of human beings. The temperature of the oxyacetylene flame can reach 3150 degrees Celsius, and acetylene may explode in many cases, which will endanger peopl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K7/00B23K7/10
Inventor 胡保银
Owner 胡保银
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